The last extensive survey of possible rhino range in the last known range state, Cameroon in 2006, failed to find any rhino or signs of rhino (dung, spoor or signs of feeding) but did find evidence of widespread wildlife poaching and local rhino monitors faking rhino spoor in the absence of any surviving rhino. There have not been any reports of any sightings or signs since 2006. Given the wildlife poaching taking place, lack of political will and conservation effort by Cameroon conservation authorities in the past, and increasing illegal demand for rhino horn and associated increased commercial rhino poaching in other range states, it is highly probable that this subspecies is now extinct.